What is it called when a bacteria is completely lack and rigid cell wall of the bacteria?

When a bacterium completely lacks a rigid cell wall, it is referred to as a "protoplast." Protoplasts are typically derived from gram-positive bacteria by enzymatically removing the peptidoglycan layer, resulting in a spherical shape that is more susceptible to osmotic pressure. This condition can affect the bacterium's ability to survive in certain environments, as the cell wall provides structural integrity and protection.